Originally Posted by xluben
Maybe the new exhaust has 4 tips on one side....
Jokes aside, Any style of tips are for aesthetics. Any quad tip or single tip can flow the same amount, or more than the other, depending on the characteristics of the exhaust. The one and only advantage of the single tip over the quads, if comparing two exhausts that have been designed to flow the same amount, is weight.
In general, yes the single tip will probably flow more than most quad tip styles on the market due to relatively poor design. Though when I am running quad tips with no mufflers, no cats, and a full 3" system, I would bet my car that my exhaust can flow just as much, if not more than any N1 style.